/*
Licensed?to?the?Apache?Software?Foundation?（ASF）?under?one
or?more?contributor?license?agreements.??See?the?NOTICE?file
distributed?with?this?work?for?additional?information
regarding?copyright?ownership.??The?ASF?licenses?this?file
to?you?under?the?Apache?License?Version?2.0?（the
“License“）;?you?may?not?use?this?file?except?in?compliance
with?the?License.??You?may?obtain?a?copy?of?the?License?at

??https://www.apache.org/licenses/LICENSE-2.0

Unless?required?by?applicable?law?or?agreed?to?in?writing
software?distributed?under?the?License?is?distributed?on?an
“AS?IS“?BASIS?WITHOUT?WARRANTIES?OR?CONDITIONS?OF?ANY
KIND?either?express?or?implied.??See?the?License?for?the
specific?language?governing?permissions?and?limitations
under?the?License.
*/

import?java.io.File;
import?java.io.FileInputStream;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.net.URL;
import?java.nio.channels.Channels;
import?java.nio.channels.ReadableByteChannel;
import?java.util.Properties;

public?class?MavenWrapperDownloader?{

????/**
?????*?Default?URL?to?download?the?maven-wrapper.jar?from?if?no?‘downloadUrl‘?is?provided.
?????*/
????private?static?final?String?DEFAULT_DOWNLOAD_URL?=
????????????“https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.2/maven-wrapper-0.4.2.jar“;

????/**
?????*?Path?to?the?maven-wrapper.properties?file?which?might?contain?a?downloadUrl?property?to
?????*?use?instead?of?the?default?one.
?????*/
????private?static?final?String?MAVEN_WRAPPER_PROPERTIES_PATH?=
????????????“.mvn/wrapper/maven-wrapper.properties“;

????/**
?????*?Path?where?the?maven-wrapper.jar?will?be?saved?to.
?????*/
????private?static?final?String?MAVEN_WRAPPER_JAR_PATH?=
????????????“.mvn/wrapper/maven-wrapper.jar“;

????/**
?????*?Name?of?the?property?which?should?be?used?to?override?the?default?download?url?for?the?wrapper.
?????*/
????private?static?final?String?PROPERTY_NAME_WRAPPER_URL?=?“wrapperUrl“;

????public?static?void?main（String?args[]）?{
????????System.out.println（“-?Downloader?started“）;
????????File?baseDirectory?=?new?File（args[0]）;
????????System.out.println（“-?Using?base?directory:?“?+?baseDirectory.getAbsolutePath（））;

????????//?If?the?maven-wrapper.properties?exists?read?it?and?check?if?it?contains?a?custom
????????//?wrapperUrl?parameter.
????????File?mavenWrapperPropertyFile?=?new?File（baseDirectory?MAVEN_WRAPPER_PROPERTIES_PATH）;
????????String?url?=?DEFAULT_DOWNLOAD_URL;
????????if（mavenWrapperPropertyFile.exists（））?{
????????????FileInputStream?mavenWrapperPropertyFileInputStream?=?null;
????????????try?{
????????????????mavenWrapperPropertyFileInputStream?=?new?FileInputStream（mavenWrapperPropertyFile）;
????????????????Properties?mavenWrapperProperties?=?new?Properties（）;
????????????????mavenWrapperProperties.load（mavenWrapperPropertyFileInputStream）;
????????????????url?=?mavenWrapperProperties.getProperty（PROPERTY_NAME_WRAPPER_URL?url）;
????????????}?catch?（IOException?e）?{
????????????????Syste

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-05-29?14:48??hucheng-master\
?????目錄???????????0??2019-06-11?11:58??hucheng-master\.idea\
?????文件??????????18??2019-04-19?10:33??hucheng-master\.idea\.name
?????文件????????2644??2019-04-29?11:44??hucheng-master\.idea\compiler.xml
?????文件????????2050??2019-04-29?11:44??hucheng-master\.idea\encodings.xml
?????目錄???????????0??2019-04-19?10:34??hucheng-master\.idea\inspectionProfiles\
?????文件????????1444??2019-04-19?10:34??hucheng-master\.idea\inspectionProfiles\Project_Default.xml
?????目錄???????????0??2019-05-06?11:27??hucheng-master\.idea\libraries\
?????文件?????????489??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__antlr_antlr_2_7_7.xml
?????文件?????????541??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__aopalliance_aopalliance_1_0.xml
?????文件?????????610??2019-04-23?10:00??hucheng-master\.idea\libraries\Maven__avalon_framework_avalon_framework_4_1_3.xml
?????文件?????????595??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__ch_qos_logback_logback_classic_1_2_3.xml
?????文件?????????574??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__ch_qos_logback_logback_core_1_2_3.xml
?????文件?????????523??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_101tec_zkclient_0_10.xml
?????文件?????????715??2019-04-28?16:55??hucheng-master\.idea\libraries\Maven__com_alibaba_boot_dubbo_spring_boot_autoconfigure_0_2_0.xml
?????文件?????????673??2019-04-28?16:55??hucheng-master\.idea\libraries\Maven__com_alibaba_boot_dubbo_spring_boot_starter_0_2_0.xml
?????文件?????????520??2019-04-29?11:48??hucheng-master\.idea\libraries\Maven__com_alibaba_druid_1_1_10.xml
?????文件?????????660??2019-04-29?11:48??hucheng-master\.idea\libraries\Maven__com_alibaba_druid_spring_boot_starter_1_1_10.xml
?????文件?????????513??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_alibaba_dubbo_2_6_0.xml
?????文件?????????513??2019-04-28?16:55??hucheng-master\.idea\libraries\Maven__com_alibaba_dubbo_2_6_2.xml
?????文件?????????541??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_alibaba_fastjson_1_2_40.xml
?????文件?????????541??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_alibaba_fastjson_1_2_49.xml
?????文件?????????541??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_alibaba_fastjson_1_2_56.xml
?????文件?????????534??2019-04-28?16:55??hucheng-master\.idea\libraries\Maven__com_alibaba_fastjson_1_2_6.xml
?????文件?????????533??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_beust_jcommander_1_72.xml
?????文件?????????530??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_caucho_hessian_4_0_38.xml
?????文件?????????629??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_ctrip_framework_apollo_apollo_client_1_0_0.xml
?????文件?????????615??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_ctrip_framework_apollo_apollo_core_1_0_0.xml
?????文件?????????632??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_dyuproject_protostuff_protostuff_api_1_0_8.xml
?????文件?????????723??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_dyuproject_protostuff_protostuff_collectionschema_1_0_8.xml
?????文件?????????639??2019-04-19?12:44??hucheng-master\.idea\libraries\Maven__com_dyuproject_protostuff_protostuff_core_1_0_8.xml
............此處省略949個文件信息